From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
To: libc-alpha@sourceware.org
Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com>,
linux-snps-arc@lists.infradead.org,
Adhemerval Zanella <adhemerval.zanella@linaro.org>
Subject: [COMMITTED 13/13] Documentation for ARC port
Date: Fri, 10 Jul 2020 16:38:10 -0700 [thread overview]
Message-ID: <20200710233810.18720-13-vgupta@synopsys.com> (raw)
In-Reply-To: <20200710233810.18720-1-vgupta@synopsys.com>
(a) ABI doc:
https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/wiki/files/ARCv2_ABI.pdf
(b) Programmer's Reference Manual (PRM) : needs a download request to be filled
https://www.synopsys.com/dw/ipdir.php?ds=arc-hs44-hs46-hs48
https://www.synopsys.com/dw/doc.php/ds/cc/programmers-reference-manual-ARC-HS.pdf
As of port merge (and Florian's patch to fix static TLS), glibc testsuite
(cross-test setup) has following failures:
FAIL: elf/tst-audit14
FAIL: elf/tst-audit15
FAIL: elf/tst-audit16
FAIL: elf/tst-ldconfig-ld_so_conf-update
FAIL: elf/tst-libc_dlvsym
FAIL: elf/tst-libc_dlvsym-static
FAIL: iconv/test-iconvconfig # Needs gconv installed
FAIL: io/ftwtest # Requires execution by non-root
FAIL: io/tst-lockf
FAIL: libio/tst-wfile-sync
FAIL: locale/tst-localedef-path-norm
FAIL: nptl/test-cond-printers # needs Python3 and target GDB on target
FAIL: nptl/test-condattr-printers # ditto
FAIL: nptl/test-mutex-printers # ditto
FAIL: nptl/test-mutexattr-printers # ditto
FAIL: nptl/test-rwlock-printers # ditto
FAIL: nptl/test-rwlockattr-printers # ditto
FAIL: nptl/tst-umask1 # passes if run natively on target (NFS ACLv3 support needed)
FAIL: nss/bug-erange
FAIL: nss/tst-nss-files-hosts-getent
FAIL: nss/tst-nss-files-hosts-multi
FAIL: posix/bug-ga2
FAIL: posix/globtest # require same user on target and host
FAIL: posix/tst-getaddrinfo5
FAIL: stdio-common/tst-vfprintf-width-prec
FAIL: stdio-common/tst-vfprintf-width-prec-alloc
FAIL: stdio-common/tst-vfprintf-width-prec-mem
FAIL: string/tst-strerror
FAIL: string/tst-strsignal
FAIL: sunrpc/bug20790 # missing cpp on target
FAIL: timezone/tst-tzset
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
---
NEWS | 11 +++++++++++
README | 1 +
manual/install.texi | 4 ++++
3 files changed, 16 insertions(+)
diff --git a/NEWS b/NEWS
index 0b25b4fde99a..92dcb77fef07 100644
--- a/NEWS
+++ b/NEWS
@@ -15,6 +15,17 @@ Major new features:
* New locale added: ckb_IQ (Kurdish/Sorani spoken in Iraq)
+* Support for Synopsys ARC HS cores (ARCv2 ISA) running Linux has been
+ added. This port requires at least binutils-2.32, gcc-8.3 and Linux-5.1.
+ Three ABIs are supported:
+
+ - arc-linux-gnu
+ - arc-linux-gnuhf
+ - arceb-linux-gnu
+
+ The arc* ABI is little-endian while arceb is big-endian. All ABIs use
+ 64-bit time (y2038 safe) and 64-bit file offsets (LFS default).
+
* The GNU C Library now loads audit modules listed in the DT_AUDIT and
DT_DEPAUDIT dynamic section entries of the main executable.
diff --git a/README b/README
index 31c5da0405bd..903f07e4840a 100644
--- a/README
+++ b/README
@@ -24,6 +24,7 @@ The GNU C Library supports these configurations for using Linux kernels:
aarch64*-*-linux-gnu
alpha*-*-linux-gnu
+ arc*-*-linux-gnu
arm-*-linux-gnueabi
csky-*-linux-gnuabiv2
hppa-*-linux-gnu
diff --git a/manual/install.texi b/manual/install.texi
index ea0059a4ec98..735e99bb0356 100644
--- a/manual/install.texi
+++ b/manual/install.texi
@@ -512,6 +512,8 @@ Library with support for IEEE long double.
@c powerpc64le performs an autoconf test to verify the compiler compiles with
@c commands like "$CC -c foo.c -mabi=ibmlongdouble -mlong-double-128".
+For ARC architecture builds, GCC 8.3 or higher is needed.
+
For multi-arch support it is recommended to use a GCC which has been built with
support for GNU indirect functions. This ensures that correct debugging
information is generated for functions selected by IFUNC resolvers. This
@@ -537,6 +539,8 @@ For PowerPC 64-bits little-endian (powerpc64le), @command{objcopy} is required
to support @option{--update-section}. This option requires binutils 2.26 or
newer.
+ARC architecture needs @code{binutils} 2.32 or higher for TLS related fixes.
+
@item
GNU @code{texinfo} 4.7 or later
--
2.20.1
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prev parent reply other threads:[~2020-07-10 23:38 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-10 23:37 [COMMITTED 01/13] ARC: ABI Implementation Vineet Gupta
2020-07-10 23:37 ` [COMMITTED 02/13] ARC: startup and dynamic linking code Vineet Gupta
2020-07-10 23:38 ` [COMMITTED 03/13] ARC: Thread Local Storage support Vineet Gupta
2020-07-10 23:38 ` [COMMITTED 04/13] ARC: Atomics and Locking primitives Vineet Gupta
2020-07-10 23:38 ` [COMMITTED 05/13] ARC: math soft float support Vineet Gupta
2020-07-10 23:38 ` [COMMITTED 06/13] ARC: hardware floating point support Vineet Gupta
2020-07-10 23:38 ` [COMMITTED 07/13] ARC: Linux Syscall Interface Vineet Gupta
2020-07-10 23:38 ` [COMMITTED 08/13] ARC: Linux ABI Vineet Gupta
2020-07-10 23:38 ` [COMMITTED 09/13] ARC: Linux Startup and Dynamic Loading Vineet Gupta
2020-07-10 23:38 ` [COMMITTED 10/13] ARC: ABI lists Vineet Gupta
2020-07-10 23:38 ` [COMMITTED 11/13] ARC: Build Infrastructure Vineet Gupta
2020-07-10 23:38 ` [COMMITTED 12/13] build-many-glibcs.py: Enable ARC builds Vineet Gupta
2020-07-10 23:38 ` Vineet Gupta [this message]
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